js实现手机端图片双指缩放变大变小插件

对于手机上图片的缩放通常有两种：

介绍第一种情况的插件，pinchzoom.js，用法很简单，只需要修改img的路径，在引用pinchzoom.js以及你平时用的jquery就可以。

链接: https://pan.baidu.com/s/1niv1Eb2pZFqbNjUcwhg8Yw 提取码: 8hcb

<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>图片缩放</title>
    <style>
        .pinch-zoom,.pinch-zoom img{
            width: 100%;
            -webkit-user-drag: none;
            -moz-user-drag: none;
            -ms-user-drag: none;
            user-drag: none;
        }
    </style>
</head>
<body>
<div class="page" style="display:block">
    <div class="pinch-zoom">
        <img src="images/timg.jpg"/>
    </div>
</div>
<script src="js/jquery-1.7.2.min.js"></script>
<script src="js/pinchzoom.js"></script>
<script type="text/javascript">
    $(function () {
        $('div.pinch-zoom').each(function () {
            new RTP.PinchZoom($(this), {});
        });
    })
</script>
</body>
</html>

第二种缩放情况插件，scale.js，img一定要放在list的div里面，除了引用scale.js外还需要引用scale.css，贴出完整代码：

scale下载地址

链接: https://pan.baidu.com/s/1NUtYPJer_zvvPM5w6w_u8w 提取码: 4qhp

<!doctype html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="width=device-width,initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no" />
    <title>图片缩放</title>
    <link rel="stylesheet" href="themes/scale.css" type="text/css" />
</head>
<body>
    <div class="list">
         <img src="themes/images/2.jpg" />
    </div>
    <section class="imgzoom_pack">
        <div class="imgzoom_x">X</div>
        <div class="imgzoom_img"><img src="" /></div>
    </section>
    <script src="js/scale.js"></script>
    <script>
        document.addEventListener("DOMContentLoaded", function(event){
            ImagesZoom.init({
                "elem": ".list"
            });
        }, false);
    </script>
</body>
</html>

转载自：https://blog.csdn.net/gl0ry/article/details/56055414